/*
 * JBoss, Home of Professional Open Source
 * Copyright 2011, Red Hat, Inc. and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.mobicents.protocols.ss7.cap.service.circuitSwitchedCall;

import java.io.IOException;
import java.util.ArrayList;

import org.mobicents.protocols.asn.AsnException;
import org.mobicents.protocols.asn.AsnInputStream;
import org.mobicents.protocols.asn.AsnOutputStream;
import org.mobicents.protocols.asn.Tag;
import org.mobicents.protocols.ss7.cap.api.CAPException;
import org.mobicents.protocols.ss7.cap.api.CAPMessageType;
import org.mobicents.protocols.ss7.cap.api.CAPOperationCode;
import org.mobicents.protocols.ss7.cap.api.CAPParsingComponentException;
import org.mobicents.protocols.ss7.cap.api.CAPParsingComponentExceptionReason;
import org.mobicents.protocols.ss7.cap.api.primitives.CAPExtensions;
import org.mobicents.protocols.ss7.cap.api.primitives.SendingSideID;
import org.mobicents.protocols.ss7.cap.api.service.circuitSwitchedCall.CallInformationRequestRequestIndication;
import org.mobicents.protocols.ss7.cap.api.service.circuitSwitchedCall.primitive.RequestedInformationType;
import org.mobicents.protocols.ss7.cap.primitives.CAPExtensionsImpl;
import org.mobicents.protocols.ss7.cap.primitives.SendingSideIDImpl;


/**
 * 
 * @author sergey vetyutnev
 * 
 */
public class CallInformationRequestRequestIndicationImpl extends CircuitSwitchedCallMessageImpl implements CallInformationRequestRequestIndication {

	public static final int _ID_requestedInformationTypeList = 0;
	public static final int _ID_extensions = 2;
	public static final int _ID_legID = 3;

	public static final String _PrimitiveName = "CallInformationRequestRequestIndication";	

	private ArrayList<RequestedInformationType> requestedInformationTypeList;
	private CAPExtensions extensions;
	private SendingSideID legID;	

	
	public CallInformationRequestRequestIndicationImpl() {
	}
	
	public CallInformationRequestRequestIndicationImpl(ArrayList<RequestedInformationType> requestedInformationTypeList, CAPExtensions extensions,
			SendingSideID legID) {
		this.requestedInformationTypeList = requestedInformationTypeList;
		this.extensions = extensions;
		this.legID = legID;
	}

	@Override
	public CAPMessageType getMessageType() {
		return CAPMessageType.callInformationRequest_Request;
	}

	@Override
	public int getOperationCode() {
		return CAPOperationCode.callInformationRequest;
	}

	@Override
	public ArrayList<RequestedInformationType> getRequestedInformationTypeList() {
		return requestedInformationTypeList;
	}

	@Override
	public CAPExtensions getExtensions() {
		return extensions;
	}

	@Override
	public SendingSideID getLegID() {
		return legID;
	}
	
	
	@Override
	public int getTag() throws CAPException {
		return Tag.SEQUENCE;
	}

	@Override
	public int getTagClass() {
		return Tag.CLASS_UNIVERSAL;
	}

	@Override
	public boolean getIsPrimitive() {
		return false;
	}

	@Override
	public void decodeAll(AsnInputStream ansIS) throws CAPParsingComponentException {

		try {
			int length = ansIS.readLength();
			this._decode(ansIS, length);
		} catch (IOException e) {
			throw new CAPParsingComponentException("IOException when decoding " + _PrimitiveName + ": " + e.getMessage(), e,
					CAPParsingComponentExceptionReason.MistypedParameter);
		} catch (AsnException e) {
			throw new CAPParsingComponentException("AsnException when decoding " + _PrimitiveName + ": " + e.getMessage(), e,
					CAPParsingComponentExceptionReason.MistypedParameter);
		}
	}

	@Override
	public void decodeData(AsnInputStream ansIS, int length) throws CAPParsingComponentException {

		try {
			this._decode(ansIS, length);
		} catch (IOException e) {
			throw new CAPParsingComponentException("IOException when decoding " + _PrimitiveName + ": " + e.getMessage(), e,
					CAPParsingComponentExceptionReason.MistypedParameter);
		} catch (AsnException e) {
			throw new CAPParsingComponentException("AsnException when decoding " + _PrimitiveName + ": " + e.getMessage(), e,
					CAPParsingComponentExceptionReason.MistypedParameter);
		}
	}

	private void _decode(AsnInputStream ansIS, int length) throws CAPParsingComponentException, IOException, AsnException {

		this.requestedInformationTypeList = null;
		this.extensions = null;
		this.legID = null;
//		this.legID = new SendingSideIDImpl(LegType.leg2);

		AsnInputStream ais = ansIS.readSequenceStreamData(length);
		while (true) {
			if (ais.available() == 0)
				break;

			int tag = ais.readTag();

			if (ais.getTagClass() == Tag.CLASS_CONTEXT_SPECIFIC) {
				switch (tag) {
				case _ID_requestedInformationTypeList:
					this.requestedInformationTypeList = new ArrayList<RequestedInformationType>();
					AsnInputStream ais2 = ais.readSequenceStream();
					while (true) {
						if (ais2.available() == 0)
							break;

						int tag2 = ais2.readTag();

						if (tag2 != Tag.ENUMERATED || ais2.getTagClass() != Tag.CLASS_UNIVERSAL || !ais2.isTagPrimitive())
							throw new CAPParsingComponentException("Error while decoding " + _PrimitiveName
									+ ": bad RequestedInformationType tag or tagClass or RequestedInformationType is not primitive",
									CAPParsingComponentExceptionReason.MistypedParameter);

						int i1 = (int) ais2.readInteger();
						RequestedInformationType el = RequestedInformationType.getInstance(i1);
						if (el == null)
							throw new CAPParsingComponentException("Error while decoding " + _PrimitiveName
									+ ": bad RequestedInformationType value",
									CAPParsingComponentExceptionReason.MistypedParameter);
						this.requestedInformationTypeList.add(el);
					}
					break;
				case _ID_extensions:
					this.extensions = new CAPExtensionsImpl();
					((CAPExtensionsImpl) this.extensions).decodeAll(ais);
					break;
				case _ID_legID:
					ais2 = ais.readSequenceStream();
					ais2.readTag();
					this.legID = new SendingSideIDImpl();
					((SendingSideIDImpl) this.legID).decodeAll(ais2);
					break;

				default:
					ais.advanceElement();
					break;
				}
			} else {
				ais.advanceElement();
			}
		}

		if (this.requestedInformationTypeList == null)
			throw new CAPParsingComponentException("Error while decoding " + _PrimitiveName
					+ ": Parameter requestedInformationTypeList is mandatory parameters, but not found", CAPParsingComponentExceptionReason.MistypedParameter);
	}

	@Override
	public void encodeAll(AsnOutputStream asnOs) throws CAPException {
		this.encodeAll(asnOs, this.getTagClass(), this.getTag());
	}

	@Override
	public void encodeAll(AsnOutputStream asnOs, int tagClass, int tag) throws CAPException {

		try {
			asnOs.writeTag(tagClass, this.getIsPrimitive(), tag);
			int pos = asnOs.StartContentDefiniteLength();
			this.encodeData(asnOs);
			asnOs.FinalizeContent(pos);
		} catch (AsnException e) {
			throw new CAPException("AsnException when encoding " + _PrimitiveName + ": " + e.getMessage(), e);
		}
	}

	@Override
	public void encodeData(AsnOutputStream aos) throws CAPException {

		if (this.requestedInformationTypeList == null)
			throw new CAPException("Error while encoding " + _PrimitiveName + ": requestedInformationTypeList must not be null");
		if (this.requestedInformationTypeList.size() < 1 || this.requestedInformationTypeList.size() > 4)
			throw new CAPException("Error while encoding " + _PrimitiveName + ": requestedInformationTypeList size must be from 1 to 4");

		try {
			aos.writeTag(Tag.CLASS_CONTEXT_SPECIFIC, false, _ID_requestedInformationTypeList);
			int pos = aos.StartContentDefiniteLength();
			for (RequestedInformationType ri : this.requestedInformationTypeList) {
				aos.writeInteger(Tag.CLASS_UNIVERSAL, Tag.ENUMERATED, ri.getCode());
			}
			aos.FinalizeContent(pos);

			if (this.extensions != null)
				((CAPExtensionsImpl) this.extensions).encodeAll(aos, Tag.CLASS_CONTEXT_SPECIFIC, _ID_extensions);

			if (this.legID != null) {
				aos.writeTag(Tag.CLASS_CONTEXT_SPECIFIC, false, _ID_legID);
				pos = aos.StartContentDefiniteLength();
				((SendingSideIDImpl) this.legID).encodeAll(aos);
				aos.FinalizeContent(pos);
			}

		} catch (AsnException e) {
			throw new CAPException("AsnException when encoding " + _PrimitiveName + ": " + e.getMessage(), e);
		} catch (IOException e) {
			throw new CAPException("IOException when encoding " + _PrimitiveName + ": " + e.getMessage(), e);
		}
	}

	@Override
	public String toString() {

		StringBuilder sb = new StringBuilder();
		sb.append(_PrimitiveName);
		sb.append(" [");

		if (this.requestedInformationTypeList != null) {
			sb.append("requestedInformationTypeList=[");
			boolean firstItem = true;
			for (RequestedInformationType ri : this.requestedInformationTypeList) {
				if (firstItem)
					firstItem = false;
				else
					sb.append(", ");
				sb.append(ri.toString());
			}
			sb.append("]");
		}
		if (this.extensions != null) {
			sb.append(", extensions=");
			sb.append(extensions.toString());
		}
		if (this.legID != null) {
			sb.append(", legID=");
			sb.append(legID.toString());
		}

		sb.append("]");

		return sb.toString();
	}
}
